Seminar: Electrical equipment of machines according to EN 60204-1

Legal and standard-related aspects

• Connection between the Machinery Directive and the Low Voltage Directive
• The 3-step iterative process for risk reduction in accordance with EN ISO 12100, Figure 1
• Cooperation between mechanical engineering, electrical engineering and control engineering:
  • Who or which department is responsible for what in connection with CE marking?
  • In which cases do control cabinets require their own declaration of conformity and according to which directives?
  • Differences between external suppliers and internal departments.
• Relationship between EN 60204-1 and EN ISO 13849, Parts 1 and 2 (performance level and validation).
• Please note our special seminar: Design of safe control systems according to EN ISO 13849-1 and -2
• EN 60204-1 Introduction
• EN 60204-1, Figure 1: Overview of electrical requirements based on the block diagram of a typical machine
• Delimitation of the machine from the electrical system

EN 60204-1 Introduction

• EN 60204-1, Figure 1: Overview of electrical requirements based on the block diagram of a typical machine
• Delimitation of the machine from the electrical installation

Electrotechnical design of machines

• General requirements
• Special features of the power supply
• Requirements for switchgear and controlgear: main switch, structure, wiring, indicator lights, control elements, etc.
• Emergency stop devices – stop in an emergency:
  • Stop categories
  • Connection to EN ISO 13850 (Emergency stop function - Principles for design)
• Design of control circuits and control functions based on risk assessment
• Prevention of unexpected start-up
• Selection and protection of electrical equipment
• Requirements for motors, cable routing, cable colours, minimum information on the type plate
• Brief overview: Validation according to EN ISO 13849-2 to avoid hazards caused by the dangerous failure of components
• PLC programming:
  • Interaction between hardware and software
  • How to determine in which cases the use of safety controllers is necessary.
  • Attention! Why standardized PLC controllers are usually not suitable for safety monitoring.
• Requirements for technical documentation and identifiability in switchgear and controlgear construction
• Required tests before the machine is handed over to production or sales
• Requirements of the Low Voltage Directive for switchgear and controlgear: Distinction from the EN 61439 series (low-voltage switchgear and controlgear assemblies). Among other things, this seminar will cover the following topics:
  • Area of application: controlgear, control panels, etc.
  • Selection of switchgear, surge protection, insulation coordination
  • Requirements for enclosures: mechanical resistance, corrosion protection, IP protection classes
  • Forms of internal partitioning
  • Necessary heating calculations and tests
  • Short-circuit and arc fault resistance
  • Required electrical tests of the generator

Questions and discussion

Your individual questions enliven the seminar and increase its practical relevance.